ABB Relion 630 Series, Technical Manual

Page: 165 / 380

If
INT_IN1
≤
INT_IN2
,
OUTPUT
= 1, else
OUTPUT
= 0.
Logic function blocks do not have the hysteresis feature. Oscillating
outputs should be avoided when comparing analog signals that have
very closely varying values.
Signals
Table 164: LEI Input signals
Name Type Default Description
INT_IN1 INTEGER 0 Integer input 1
INT_IN2 INTEGER 0 Integer input 2
Table 165: LEI Output signals
Name Type Description
OUTPUT BOOLEAN Binary output
3.32.1.21 Not equal check for real signals NER
Function block
GUID-78EF1BC5-7202-42CF-8EFC-7D1A9E7DDB1D V1 EN
Figure 95: Function block
Functionality
The function compares the real inputs
REAL_IN1
and
REAL_IN2
and activates the
binary output
OUTPUT
, if
REAL_IN1
not equal to
REAL_IN2
.
If
REAL_IN1
≠
REAL_IN2
,
OUTPUT
= 1, else
OUTPUT
= 0.
Logic function blocks do not have the hysteresis feature. Oscillating
outputs should be avoided when comparing analog signals that have
very closely varying values.
Signals
Table 166: NER Input signals
Name Type Default Description
REAL_IN1 REAL 0.0 Real input 1
REAL_IN2 REAL 0.0 Real input 2
1MRS757256 F
Section 3
Basic functions
PML630/Compact Load-Shedding Solution 159
Technical Manual